I came across a very rare bird and new reference in Rolex Tool Watch History that started right after Sir Edmund Hillary & Tenzing Norgay conquered Mt. Everest, 1953 & Jacques Piccard & US Lt. Don Walsh dived to the deepest place on earth, this year 2013 it’s exactly 60 years ago, Rolex introduced their legendary new concept called; “Rolex Tool Watch”. Rolex calls them “Professional Watches“-These watches were intended for new professional activities, such as deep-sea diving, aviation, mountain climbing and scientific exploration” …

Besides the in Basel 1953 introduced Ref 6202 ( Turn o Graph) the Ref 6204 & Ref 6205 for their first Submariner ( Including Ref 6200 for 200 meter) Rolex had yet another references ready to explorer the world as being part of Rolex tool watch introduction of chronometric precision & water resistance, Rolex developed professional watches that served as tools and whose function went far beyond simply telling the time….The ‘Missing Link TOG’ From left Ref 6202 – to middle Ref 6206 – and on the right the ref 6609 Turn O Graph “Thunderbirds” history…..

The double flat bezel of 1953 was inspiration for adding later the typical TOG bezel with engraved numeral…

Here’s the link to the Explorer, after doing some more research I found 2 other Ref 6206, having a later dial, non textured in France. We see the Ref. 6202 being crossed out and added Ref 6206 and additional / 84…

Even between the lugs it says Ref 6206 with added 84. I asked my buddy D what he thought and he came up with a very logic answer, the 84 stands for later Ref 6284, Rolex also used for early Explorers..

Yet another important discovery, A ref 6202 with crossed out ref 6284 from 2.53 !!!! Thanks Solealtoo!

Evolution from right to left of the Oyster Case & their movements starting on the right in small with the Bubbleback ref 2940, to 1953 ref 6204 Sub, ref 6350 Explorer, ref 6206 Albino, ref 6202 TOG, ref 6610 Military Explorer from 1957…

A Buddy on VRF ( Vintage Rolex Forum ) just posted another later version of the Ref 6206 he had many years back, thanks O.C.!!